乳児を対象にした次のようなテストがある。まず、机の上に水の入ったグラスを置き、乳児たちに見せる。次にそれを木の板で隠し、その板をグラスのある方向へ動かす。もし、まるでグラスがそこに存在しないかのように、板がグラスを通り抜けていったとしたら、子どもたちは驚くだろうか？ 生後6カ月の乳幼児の多くは驚き、1歳になる頃には、ほとんどすべての子どもが観察を通して学んだ「物体の永続性」という直観的な概念を身に ...

Had they included just one of Tony Hoare’s achievements, many scientific careers would be considered prestigious enough. His had a long list, unfortunately closed by his passing away at the age of 92 ...

The internet, he says, was built without security in mind, and what followed was a succession of workarounds. "What we have ...

Commentary: I learned valuable things, such that if you threw your laptop out the window, I would be able to say which parts ...